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But former Democratic Senate majority leader George Mitchell, who was a U.S. special envoy to Northern Ireland, told CNN that while Clinton was not directly involved in negotiations, she did play a helpful role in bringing in women's groups that made a difference.

Mitchell is a Democratic superdelegate and has not publicly endorsed Clinton or Obama.

Rep. Peter King, a Republican from New York, was also involved in the process. He recalls one late-night meeting with former President Bill Clinton, Sen. Clinton and Sinn Fein leader Gerry Adams.

"There was a discussion of how the IRA would decommission its weapons. And I know that Sen. Clinton was part of that meeting," King said.

Kosovo

"I negotiated open borders to let fleeing refugees into safety from Kosovo," she said on CNN's American Morning.

In May of 1999, she was in Macedonia visiting refugee camps near the Kosovo border and meeting with Macedonia's president and prime minister.

Sources with knowledge of her visit say she discussed the refugees' plight with those leaders. It's not clear how much she helped since CNN reported at the time that Macedonia reopened its border to Kosovar refugees before Clinton's visit.

China

"I've been standing up against, you know, the Chinese government over women's rights and standing up for human rights in many different places," she said on CNN's American Morning.

During a 1995 visit to Beijing, at a time when her husband's administration was trying to press China on human rights, Sen. Clinton made a speech condemning abuses.

"No one should be forced to remain silent for fear of religious or political persecution, arrest, abuse or torture," she said.

But a former National Security Council official in the Clinton administration says Clinton didn't attend NSC meetings. So while her experience is extensive, she rarely carried an official portfolio.E-mail to a friend